It's a little overblown, sure--but I do think that for the super technical power users especially, people like to invest in getting their setup tweaked just rig

It's a little overblown, sure--but I do think that for the super technical power users especially, people like to invest in getting their setup tweaked just right, including all the UX details. This then creates anxiety over the risk to all that time invested. I don't want to learn and rejigger a full set of power user keyboard shortcuts for an app that might disappear, goes the thinking. In addition, open source often means further tweaks are possible (though it sounds like they're trying to maintain extensibility so this may be less of a big deal).